India [ Images ]n shuttler Sourabh Varma continued his giant killing spree as he shocked seventh seed Yun Hu 23-21, 21-19 to breeze into the men's singles semi-finals of the Syed Modi Memorial India Open Grand Prix [ Images ] Gold badminton tournament, in Lucknow [ Images ], on Friday.

Unseeded Varma snuffed out the challenge of his opponent from Hong Kong in 50 minutes in the quarter-finals.

Sourabh, who had also upset fourth seed Tommy Sugiarto of Indonesia, will next face 16th seed Suppanyu Avihingsanon from Thailand.

However, Sourab's younger brother Sameer was ousted from the men;'s singles with a 12-21, 13-21 defeat against fifth seed Wing Ki Wong from Hong Kong.

Sameer had entered the main draw through qualifiers.

Also moving to the semifinal was the pair of V Diju and Jawala Gutta, who outplayed Hong Kong pair of Wai Hong Wong and Hoi Wah Chau 21-8, 21-16 in the mixed doubles quarter-finals in just 26 minutes.

They now take on Indonesian team of Muhammad Rijal and Debby Susanto.

However, Aparna Balan and N Siki Reddy's campaign ended in the women's doubles with 17-21, 5-21 drubbing the hands of Vivian Kah Mun Hoo and Khe Wei Woon in the quarter-finals.